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Finding the Fourth Proportional to 155,326.80, 232,990.20 and 146,578.80

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Solution

The fourth proportional to 155,326.80, 232,990.20 and 146,578.80 is: 219,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,326.80 : 232,990.20 = 146,578.80 : x
  2. Step 2: Convert to fraction form
    155,326.80/232,990.20 = 146,578.80/x
  3. Step 3: Cross multiply
    155,326.80x = 232,990.20 × 146,578.80
  4. Step 4: Simplify right side
    155,326.80x = 34,151,423,927.76
  5. Step 5: Solve for x
    x = 34,151,423,927.76/155,326.80
  6. Step 6: Final answer
    x = 219,868.20

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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.