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Finding the Fourth Proportional to 127,357.44, 175,752 and 70,767.60

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Solution

The fourth proportional to 127,357.44, 175,752 and 70,767.60 is: 97,658.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,357.44 : 175,752 = 70,767.60 : x
  2. Step 2: Convert to fraction form
    127,357.44/175,752 = 70,767.60/x
  3. Step 3: Cross multiply
    127,357.44x = 175,752 × 70,767.60
  4. Step 4: Simplify right side
    127,357.44x = 12,437,547,235.20
  5. Step 5: Solve for x
    x = 12,437,547,235.20/127,357.44
  6. Step 6: Final answer
    x = 97,658.58

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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.