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Finding the Fourth Proportional to 109,077,125.70, 163,615,688.55 and 109,077,125.70

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Solution

The fourth proportional to 109,077,125.70, 163,615,688.55 and 109,077,125.70 is: 163,615,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,077,125.70 : 163,615,688.55 = 109,077,125.70 : x
  2. Step 2: Convert to fraction form
    109,077,125.70/163,615,688.55 = 109,077,125.70/x
  3. Step 3: Cross multiply
    109,077,125.70x = 163,615,688.55 × 109,077,125.70
  4. Step 4: Simplify right side
    109,077,125.70x = 17,846,729,026,460,402
  5. Step 5: Solve for x
    x = 17,846,729,026,460,402/109,077,125.70
  6. Step 6: Final answer
    x = 163,615,688.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.