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Finding the Fourth Proportional to 282,645.20, 423,967.80 and 124,792.40

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Solution

The fourth proportional to 282,645.20, 423,967.80 and 124,792.40 is: 187,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,645.20 : 423,967.80 = 124,792.40 : x
  2. Step 2: Convert to fraction form
    282,645.20/423,967.80 = 124,792.40/x
  3. Step 3: Cross multiply
    282,645.20x = 423,967.80 × 124,792.40
  4. Step 4: Simplify right side
    282,645.20x = 52,907,959,284.72
  5. Step 5: Solve for x
    x = 52,907,959,284.72/282,645.20
  6. Step 6: Final answer
    x = 187,188.60

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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.