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Finding the Fourth Proportional to 127,070.94, 175,356.63 and 70,480.86

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Solution

The fourth proportional to 127,070.94, 175,356.63 and 70,480.86 is: 97,262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,070.94 : 175,356.63 = 70,480.86 : x
  2. Step 2: Convert to fraction form
    127,070.94/175,356.63 = 70,480.86/x
  3. Step 3: Cross multiply
    127,070.94x = 175,356.63 × 70,480.86
  4. Step 4: Simplify right side
    127,070.94x = 12,359,286,089.10
  5. Step 5: Solve for x
    x = 12,359,286,089.10/127,070.94
  6. Step 6: Final answer
    x = 97,262.88

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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.