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Finding the Fourth Proportional to 155,643.60, 232,927.80 and 93,358.80

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Solution

The fourth proportional to 155,643.60, 232,927.80 and 93,358.80 is: 139,715.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,643.60 : 232,927.80 = 93,358.80 : x
  2. Step 2: Convert to fraction form
    155,643.60/232,927.80 = 93,358.80/x
  3. Step 3: Cross multiply
    155,643.60x = 232,927.80 × 93,358.80
  4. Step 4: Simplify right side
    155,643.60x = 21,745,859,894.64
  5. Step 5: Solve for x
    x = 21,745,859,894.64/155,643.60
  6. Step 6: Final answer
    x = 139,715.73

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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.