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Finding the Fourth Proportional to 292,362.58, 438,543.90 and 70,746.58

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Solution

The fourth proportional to 292,362.58, 438,543.90 and 70,746.58 is: 106,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,362.58 : 438,543.90 = 70,746.58 : x
  2. Step 2: Convert to fraction form
    292,362.58/438,543.90 = 70,746.58/x
  3. Step 3: Cross multiply
    292,362.58x = 438,543.90 × 70,746.58
  4. Step 4: Simplify right side
    292,362.58x = 31,025,481,104.86
  5. Step 5: Solve for x
    x = 31,025,481,104.86/292,362.58
  6. Step 6: Final answer
    x = 106,119.88

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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.