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Finding the Fourth Proportional to 109,603.68, 151,237.90 and 61,199.70

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Solution

The fourth proportional to 109,603.68, 151,237.90 and 61,199.70 is: 84,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,603.68 : 151,237.90 = 61,199.70 : x
  2. Step 2: Convert to fraction form
    109,603.68/151,237.90 = 61,199.70/x
  3. Step 3: Cross multiply
    109,603.68x = 151,237.90 × 61,199.70
  4. Step 4: Simplify right side
    109,603.68x = 9,255,714,108.63
  5. Step 5: Solve for x
    x = 9,255,714,108.63/109,603.68
  6. Step 6: Final answer
    x = 84,447.11

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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.