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Finding the Fourth Proportional to 69,358,865.60, 104,038,298.40 and 65,107,337.60

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Solution

The fourth proportional to 69,358,865.60, 104,038,298.40 and 65,107,337.60 is: 97,661,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,358,865.60 : 104,038,298.40 = 65,107,337.60 : x
  2. Step 2: Convert to fraction form
    69,358,865.60/104,038,298.40 = 65,107,337.60/x
  3. Step 3: Cross multiply
    69,358,865.60x = 104,038,298.40 × 65,107,337.60
  4. Step 4: Simplify right side
    69,358,865.60x = 6,773,656,617,258,340
  5. Step 5: Solve for x
    x = 6,773,656,617,258,340/69,358,865.60
  6. Step 6: Final answer
    x = 97,661,006.40

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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.