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Finding the Fourth Proportional to 125,407.90, 173,060.49 and 70,959.48

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Solution

The fourth proportional to 125,407.90, 173,060.49 and 70,959.48 is: 97,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,407.90 : 173,060.49 = 70,959.48 : x
  2. Step 2: Convert to fraction form
    125,407.90/173,060.49 = 70,959.48/x
  3. Step 3: Cross multiply
    125,407.90x = 173,060.49 × 70,959.48
  4. Step 4: Simplify right side
    125,407.90x = 12,280,282,378.95
  5. Step 5: Solve for x
    x = 12,280,282,378.95/125,407.90
  6. Step 6: Final answer
    x = 97,922.72

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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.