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Finding the Fourth Proportional to 153,335.60, 230,003.40 and 128,841.20

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Solution

The fourth proportional to 153,335.60, 230,003.40 and 128,841.20 is: 193,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,335.60 : 230,003.40 = 128,841.20 : x
  2. Step 2: Convert to fraction form
    153,335.60/230,003.40 = 128,841.20/x
  3. Step 3: Cross multiply
    153,335.60x = 230,003.40 × 128,841.20
  4. Step 4: Simplify right side
    153,335.60x = 29,633,914,060.08
  5. Step 5: Solve for x
    x = 29,633,914,060.08/153,335.60
  6. Step 6: Final answer
    x = 193,261.80

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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.