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Finding the Fourth Proportional to 316,275.03, 474,693.21 and 147,886.97

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Solution

The fourth proportional to 316,275.03, 474,693.21 and 147,886.97 is: 221,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,275.03 : 474,693.21 = 147,886.97 : x
  2. Step 2: Convert to fraction form
    316,275.03/474,693.21 = 147,886.97/x
  3. Step 3: Cross multiply
    316,275.03x = 474,693.21 × 147,886.97
  4. Step 4: Simplify right side
    316,275.03x = 70,200,938,133.01
  5. Step 5: Solve for x
    x = 70,200,938,133.01/316,275.03
  6. Step 6: Final answer
    x = 221,961.68

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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.