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Finding the Fourth Proportional to 70,468.79, 97,253.06 and 38,643.89

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Solution

The fourth proportional to 70,468.79, 97,253.06 and 38,643.89 is: 53,331.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,468.79 : 97,253.06 = 38,643.89 : x
  2. Step 2: Convert to fraction form
    70,468.79/97,253.06 = 38,643.89/x
  3. Step 3: Cross multiply
    70,468.79x = 97,253.06 × 38,643.89
  4. Step 4: Simplify right side
    70,468.79x = 3,758,235,873.32
  5. Step 5: Solve for x
    x = 3,758,235,873.32/70,468.79
  6. Step 6: Final answer
    x = 53,331.92

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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.