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Finding the Fourth Proportional to 153,046.70, 229,570.05 and 74,314.70

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Solution

The fourth proportional to 153,046.70, 229,570.05 and 74,314.70 is: 111,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,046.70 : 229,570.05 = 74,314.70 : x
  2. Step 2: Convert to fraction form
    153,046.70/229,570.05 = 74,314.70/x
  3. Step 3: Cross multiply
    153,046.70x = 229,570.05 × 74,314.70
  4. Step 4: Simplify right side
    153,046.70x = 17,060,429,394.74
  5. Step 5: Solve for x
    x = 17,060,429,394.74/153,046.70
  6. Step 6: Final answer
    x = 111,472.05

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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.