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Finding the Fourth Proportional to 155,925.20, 233,734.20 and 77,051.60

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Solution

The fourth proportional to 155,925.20, 233,734.20 and 77,051.60 is: 115,501.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,925.20 : 233,734.20 = 77,051.60 : x
  2. Step 2: Convert to fraction form
    155,925.20/233,734.20 = 77,051.60/x
  3. Step 3: Cross multiply
    155,925.20x = 233,734.20 × 77,051.60
  4. Step 4: Simplify right side
    155,925.20x = 18,009,594,084.72
  5. Step 5: Solve for x
    x = 18,009,594,084.72/155,925.20
  6. Step 6: Final answer
    x = 115,501.50

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1.5x scale

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.