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Finding the Fourth Proportional to 112,695.40, 169,043.10 and 65,924.20

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Solution

The fourth proportional to 112,695.40, 169,043.10 and 65,924.20 is: 98,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,695.40 : 169,043.10 = 65,924.20 : x
  2. Step 2: Convert to fraction form
    112,695.40/169,043.10 = 65,924.20/x
  3. Step 3: Cross multiply
    112,695.40x = 169,043.10 × 65,924.20
  4. Step 4: Simplify right side
    112,695.40x = 11,144,031,133.02
  5. Step 5: Solve for x
    x = 11,144,031,133.02/112,695.40
  6. Step 6: Final answer
    x = 98,886.30

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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.