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Finding the Fourth Proportional to 172,941, 238,658.58 and 93,453

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Solution

The fourth proportional to 172,941, 238,658.58 and 93,453 is: 128,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,941 : 238,658.58 = 93,453 : x
  2. Step 2: Convert to fraction form
    172,941/238,658.58 = 93,453/x
  3. Step 3: Cross multiply
    172,941x = 238,658.58 × 93,453
  4. Step 4: Simplify right side
    172,941x = 22,303,360,276.74
  5. Step 5: Solve for x
    x = 22,303,360,276.74/172,941
  6. Step 6: Final answer
    x = 128,965.14

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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.