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Finding the Fourth Proportional to 64,656,052.60, 96,984,078.90 and 57,641,031.40

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Solution

The fourth proportional to 64,656,052.60, 96,984,078.90 and 57,641,031.40 is: 86,461,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656,052.60 : 96,984,078.90 = 57,641,031.40 : x
  2. Step 2: Convert to fraction form
    64,656,052.60/96,984,078.90 = 57,641,031.40/x
  3. Step 3: Cross multiply
    64,656,052.60x = 96,984,078.90 × 57,641,031.40
  4. Step 4: Simplify right side
    64,656,052.60x = 5,590,262,337,174,978
  5. Step 5: Solve for x
    x = 5,590,262,337,174,978/64,656,052.60
  6. Step 6: Final answer
    x = 86,461,547.10

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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.