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Finding the Fourth Proportional to 153,813.60, 230,720.40 and 94,456.80

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Solution

The fourth proportional to 153,813.60, 230,720.40 and 94,456.80 is: 141,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,813.60 : 230,720.40 = 94,456.80 : x
  2. Step 2: Convert to fraction form
    153,813.60/230,720.40 = 94,456.80/x
  3. Step 3: Cross multiply
    153,813.60x = 230,720.40 × 94,456.80
  4. Step 4: Simplify right side
    153,813.60x = 21,793,110,678.72
  5. Step 5: Solve for x
    x = 21,793,110,678.72/153,813.60
  6. Step 6: Final answer
    x = 141,685.20

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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.