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Finding the Fourth Proportional to 127,240, 175,598.49 and 70,655.02

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Solution

The fourth proportional to 127,240, 175,598.49 and 70,655.02 is: 97,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,240 : 175,598.49 = 70,655.02 : x
  2. Step 2: Convert to fraction form
    127,240/175,598.49 = 70,655.02/x
  3. Step 3: Cross multiply
    127,240x = 175,598.49 × 70,655.02
  4. Step 4: Simplify right side
    127,240x = 12,406,914,822.92
  5. Step 5: Solve for x
    x = 12,406,914,822.92/127,240
  6. Step 6: Final answer
    x = 97,507.98

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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.