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Finding the Fourth Proportional to 70,468.48, 97,210.56 and 53,672.32

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Solution

The fourth proportional to 70,468.48, 97,210.56 and 53,672.32 is: 74,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,468.48 : 97,210.56 = 53,672.32 : x
  2. Step 2: Convert to fraction form
    70,468.48/97,210.56 = 53,672.32/x
  3. Step 3: Cross multiply
    70,468.48x = 97,210.56 × 53,672.32
  4. Step 4: Simplify right side
    70,468.48x = 5,217,516,283.70
  5. Step 5: Solve for x
    x = 5,217,516,283.70/70,468.48
  6. Step 6: Final answer
    x = 74,040.43

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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.