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Finding the Fourth Proportional to 61,197.36, 84,384.90 and 42,301.68

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Solution

The fourth proportional to 61,197.36, 84,384.90 and 42,301.68 is: 58,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,197.36 : 84,384.90 = 42,301.68 : x
  2. Step 2: Convert to fraction form
    61,197.36/84,384.90 = 42,301.68/x
  3. Step 3: Cross multiply
    61,197.36x = 84,384.90 × 42,301.68
  4. Step 4: Simplify right side
    61,197.36x = 3,569,623,036.63
  5. Step 5: Solve for x
    x = 3,569,623,036.63/61,197.36
  6. Step 6: Final answer
    x = 58,329.69

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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.