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Finding the Fourth Proportional to 89,693,390.10, 125,655,776.70 and 89,693,390.10

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Solution

The fourth proportional to 89,693,390.10, 125,655,776.70 and 89,693,390.10 is: 125,655,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,693,390.10 : 125,655,776.70 = 89,693,390.10 : x
  2. Step 2: Convert to fraction form
    89,693,390.10/125,655,776.70 = 89,693,390.10/x
  3. Step 3: Cross multiply
    89,693,390.10x = 125,655,776.70 × 89,693,390.10
  4. Step 4: Simplify right side
    89,693,390.10x = 11,270,492,597,871,590
  5. Step 5: Solve for x
    x = 11,270,492,597,871,590/89,693,390.10
  6. Step 6: Final answer
    x = 125,655,776.70

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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.