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Finding the Fourth Proportional to 127,085.64, 175,403.12 and 73,367.46

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Solution

The fourth proportional to 127,085.64, 175,403.12 and 73,367.46 is: 101,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,085.64 : 175,403.12 = 73,367.46 : x
  2. Step 2: Convert to fraction form
    127,085.64/175,403.12 = 73,367.46/x
  3. Step 3: Cross multiply
    127,085.64x = 175,403.12 × 73,367.46
  4. Step 4: Simplify right side
    127,085.64x = 12,868,881,023.64
  5. Step 5: Solve for x
    x = 12,868,881,023.64/127,085.64
  6. Step 6: Final answer
    x = 101,261.49

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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.