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Finding the Fourth Proportional to 160,987.60, 241,470.60 and 42,656.40

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Solution

The fourth proportional to 160,987.60, 241,470.60 and 42,656.40 is: 63,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,987.60 : 241,470.60 = 42,656.40 : x
  2. Step 2: Convert to fraction form
    160,987.60/241,470.60 = 42,656.40/x
  3. Step 3: Cross multiply
    160,987.60x = 241,470.60 × 42,656.40
  4. Step 4: Simplify right side
    160,987.60x = 10,300,266,501.84
  5. Step 5: Solve for x
    x = 10,300,266,501.84/160,987.60
  6. Step 6: Final answer
    x = 63,981.74

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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.