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Finding the Fourth Proportional to 153,345.80, 230,018.70 and 146,654.60

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Solution

The fourth proportional to 153,345.80, 230,018.70 and 146,654.60 is: 219,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,345.80 : 230,018.70 = 146,654.60 : x
  2. Step 2: Convert to fraction form
    153,345.80/230,018.70 = 146,654.60/x
  3. Step 3: Cross multiply
    153,345.80x = 230,018.70 × 146,654.60
  4. Step 4: Simplify right side
    153,345.80x = 33,733,300,441.02
  5. Step 5: Solve for x
    x = 33,733,300,441.02/153,345.80
  6. Step 6: Final answer
    x = 219,981.90

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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.