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Finding the Fourth Proportional to 313,374.36, 432,449.88 and 170,133.18

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Solution

The fourth proportional to 313,374.36, 432,449.88 and 170,133.18 is: 234,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,374.36 : 432,449.88 = 170,133.18 : x
  2. Step 2: Convert to fraction form
    313,374.36/432,449.88 = 170,133.18/x
  3. Step 3: Cross multiply
    313,374.36x = 432,449.88 × 170,133.18
  4. Step 4: Simplify right side
    313,374.36x = 73,574,073,275.02
  5. Step 5: Solve for x
    x = 73,574,073,275.02/313,374.36
  6. Step 6: Final answer
    x = 234,780.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.