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Finding the Fourth Proportional to 64,746,052.40, 97,119,078.60 and 64,368,138.80

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Solution

The fourth proportional to 64,746,052.40, 97,119,078.60 and 64,368,138.80 is: 96,552,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,746,052.40 : 97,119,078.60 = 64,368,138.80 : x
  2. Step 2: Convert to fraction form
    64,746,052.40/97,119,078.60 = 64,368,138.80/x
  3. Step 3: Cross multiply
    64,746,052.40x = 97,119,078.60 × 64,368,138.80
  4. Step 4: Simplify right side
    64,746,052.40x = 6,251,374,331,452,909
  5. Step 5: Solve for x
    x = 6,251,374,331,452,909/64,746,052.40
  6. Step 6: Final answer
    x = 96,552,208.20

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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.