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Finding the Fourth Proportional to 127,074.72, 175,368.84 and 70,486.08

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Solution

The fourth proportional to 127,074.72, 175,368.84 and 70,486.08 is: 97,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,074.72 : 175,368.84 = 70,486.08 : x
  2. Step 2: Convert to fraction form
    127,074.72/175,368.84 = 70,486.08/x
  3. Step 3: Cross multiply
    127,074.72x = 175,368.84 × 70,486.08
  4. Step 4: Simplify right side
    127,074.72x = 12,361,062,085.75
  5. Step 5: Solve for x
    x = 12,361,062,085.75/127,074.72
  6. Step 6: Final answer
    x = 97,273.97

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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.