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Finding the Fourth Proportional to 84,506,688.30, 126,760,032.45 and 84,506,688.30

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Solution

The fourth proportional to 84,506,688.30, 126,760,032.45 and 84,506,688.30 is: 126,760,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,506,688.30 : 126,760,032.45 = 84,506,688.30 : x
  2. Step 2: Convert to fraction form
    84,506,688.30/126,760,032.45 = 84,506,688.30/x
  3. Step 3: Cross multiply
    84,506,688.30x = 126,760,032.45 × 84,506,688.30
  4. Step 4: Simplify right side
    84,506,688.30x = 10,712,070,551,150,036
  5. Step 5: Solve for x
    x = 10,712,070,551,150,036/84,506,688.30
  6. Step 6: Final answer
    x = 126,760,032.45

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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.