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Finding the Fourth Proportional to 98,335,587.20, 147,219,945.60 and 98,335,587.20

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Solution

The fourth proportional to 98,335,587.20, 147,219,945.60 and 98,335,587.20 is: 147,219,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,335,587.20 : 147,219,945.60 = 98,335,587.20 : x
  2. Step 2: Convert to fraction form
    98,335,587.20/147,219,945.60 = 98,335,587.20/x
  3. Step 3: Cross multiply
    98,335,587.20x = 147,219,945.60 × 98,335,587.20
  4. Step 4: Simplify right side
    98,335,587.20x = 14,476,959,798,128,056
  5. Step 5: Solve for x
    x = 14,476,959,798,128,056/98,335,587.20
  6. Step 6: Final answer
    x = 147,219,945.60

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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.