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Finding the Fourth Proportional to 155,785.60, 233,140.80 and 93,500.80

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Solution

The fourth proportional to 155,785.60, 233,140.80 and 93,500.80 is: 139,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,785.60 : 233,140.80 = 93,500.80 : x
  2. Step 2: Convert to fraction form
    155,785.60/233,140.80 = 93,500.80/x
  3. Step 3: Cross multiply
    155,785.60x = 233,140.80 × 93,500.80
  4. Step 4: Simplify right side
    155,785.60x = 21,798,851,312.64
  5. Step 5: Solve for x
    x = 21,798,851,312.64/155,785.60
  6. Step 6: Final answer
    x = 139,928.54

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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.