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Finding the Fourth Proportional to 69,125,889.70, 103,688,834.55 and 43,483,752.10

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Solution

The fourth proportional to 69,125,889.70, 103,688,834.55 and 43,483,752.10 is: 65,225,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,125,889.70 : 103,688,834.55 = 43,483,752.10 : x
  2. Step 2: Convert to fraction form
    69,125,889.70/103,688,834.55 = 43,483,752.10/x
  3. Step 3: Cross multiply
    69,125,889.70x = 103,688,834.55 × 43,483,752.10
  4. Step 4: Simplify right side
    69,125,889.70x = 4,508,779,577,110,115
  5. Step 5: Solve for x
    x = 4,508,779,577,110,115/69,125,889.70
  6. Step 6: Final answer
    x = 65,225,628.15

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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.