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Finding the Fourth Proportional to 62,307.48, 86,078.10 and 40,848.20

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Solution

The fourth proportional to 62,307.48, 86,078.10 and 40,848.20 is: 56,432.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,307.48 : 86,078.10 = 40,848.20 : x
  2. Step 2: Convert to fraction form
    62,307.48/86,078.10 = 40,848.20/x
  3. Step 3: Cross multiply
    62,307.48x = 86,078.10 × 40,848.20
  4. Step 4: Simplify right side
    62,307.48x = 3,516,135,444.42
  5. Step 5: Solve for x
    x = 3,516,135,444.42/62,307.48
  6. Step 6: Final answer
    x = 56,432.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.