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Finding the Fourth Proportional to 72,378.70, 108,547.29 and 24,981.48

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Solution

The fourth proportional to 72,378.70, 108,547.29 and 24,981.48 is: 37,465.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,378.70 : 108,547.29 = 24,981.48 : x
  2. Step 2: Convert to fraction form
    72,378.70/108,547.29 = 24,981.48/x
  3. Step 3: Cross multiply
    72,378.70x = 108,547.29 × 24,981.48
  4. Step 4: Simplify right side
    72,378.70x = 2,711,671,954.19
  5. Step 5: Solve for x
    x = 2,711,671,954.19/72,378.70
  6. Step 6: Final answer
    x = 37,465.06

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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.