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Finding the Fourth Proportional to 108,543,603.90, 152,364,153.30 and 108,543,603.90

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Solution

The fourth proportional to 108,543,603.90, 152,364,153.30 and 108,543,603.90 is: 152,364,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,543,603.90 : 152,364,153.30 = 108,543,603.90 : x
  2. Step 2: Convert to fraction form
    108,543,603.90/152,364,153.30 = 108,543,603.90/x
  3. Step 3: Cross multiply
    108,543,603.90x = 152,364,153.30 × 108,543,603.90
  4. Step 4: Simplify right side
    108,543,603.90x = 16,538,154,304,354,080
  5. Step 5: Solve for x
    x = 16,538,154,304,354,080/108,543,603.90
  6. Step 6: Final answer
    x = 152,364,153.30

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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.