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Finding the Fourth Proportional to 72,337.60, 101,480 and 72,337.60

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Solution

The fourth proportional to 72,337.60, 101,480 and 72,337.60 is: 101,480

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.60 : 101,480 = 72,337.60 : x
  2. Step 2: Convert to fraction form
    72,337.60/101,480 = 72,337.60/x
  3. Step 3: Cross multiply
    72,337.60x = 101,480 × 72,337.60
  4. Step 4: Simplify right side
    72,337.60x = 7,340,819,648.00
  5. Step 5: Solve for x
    x = 7,340,819,648.00/72,337.60
  6. Step 6: Final answer
    x = 101,480

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.