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Finding the Fourth Proportional to 127,239.63, 175,597.97 and 70,654.65

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Solution

The fourth proportional to 127,239.63, 175,597.97 and 70,654.65 is: 97,507.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,239.63 : 175,597.97 = 70,654.65 : x
  2. Step 2: Convert to fraction form
    127,239.63/175,597.97 = 70,654.65/x
  3. Step 3: Cross multiply
    127,239.63x = 175,597.97 × 70,654.65
  4. Step 4: Simplify right side
    127,239.63x = 12,406,813,111.06
  5. Step 5: Solve for x
    x = 12,406,813,111.06/127,239.63
  6. Step 6: Final answer
    x = 97,507.46

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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.