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Finding the Fourth Proportional to 98,934,000.40, 138,601,972.40 and 98,934,000.40

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Solution

The fourth proportional to 98,934,000.40, 138,601,972.40 and 98,934,000.40 is: 138,601,972.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,934,000.40 : 138,601,972.40 = 98,934,000.40 : x
  2. Step 2: Convert to fraction form
    98,934,000.40/138,601,972.40 = 98,934,000.40/x
  3. Step 3: Cross multiply
    98,934,000.40x = 138,601,972.40 × 98,934,000.40
  4. Step 4: Simplify right side
    98,934,000.40x = 13,712,447,592,862,390
  5. Step 5: Solve for x
    x = 13,712,447,592,862,390/98,934,000.40
  6. Step 6: Final answer
    x = 138,601,972.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.