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Finding the Fourth Proportional to 127,101.31, 175,400.01 and 70,512.67

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Solution

The fourth proportional to 127,101.31, 175,400.01 and 70,512.67 is: 97,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,101.31 : 175,400.01 = 70,512.67 : x
  2. Step 2: Convert to fraction form
    127,101.31/175,400.01 = 70,512.67/x
  3. Step 3: Cross multiply
    127,101.31x = 175,400.01 × 70,512.67
  4. Step 4: Simplify right side
    127,101.31x = 12,367,923,023.13
  5. Step 5: Solve for x
    x = 12,367,923,023.13/127,101.31
  6. Step 6: Final answer
    x = 97,307.60

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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.