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Finding the Fourth Proportional to 39,705,655.20, 55,663,500 and 39,705,655.20

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Solution

The fourth proportional to 39,705,655.20, 55,663,500 and 39,705,655.20 is: 55,663,500

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705,655.20 : 55,663,500 = 39,705,655.20 : x
  2. Step 2: Convert to fraction form
    39,705,655.20/55,663,500 = 39,705,655.20/x
  3. Step 3: Cross multiply
    39,705,655.20x = 55,663,500 × 39,705,655.20
  4. Step 4: Simplify right side
    39,705,655.20x = 2,210,155,738,225,200.25
  5. Step 5: Solve for x
    x = 2,210,155,738,225,200.25/39,705,655.20
  6. Step 6: Final answer
    x = 55,663,500

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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.