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Finding the Fourth Proportional to 153,792.60, 230,721.30 and 65,000.40

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Solution

The fourth proportional to 153,792.60, 230,721.30 and 65,000.40 is: 97,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,792.60 : 230,721.30 = 65,000.40 : x
  2. Step 2: Convert to fraction form
    153,792.60/230,721.30 = 65,000.40/x
  3. Step 3: Cross multiply
    153,792.60x = 230,721.30 × 65,000.40
  4. Step 4: Simplify right side
    153,792.60x = 14,996,976,788.52
  5. Step 5: Solve for x
    x = 14,996,976,788.52/153,792.60
  6. Step 6: Final answer
    x = 97,514.29

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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.