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Finding the Fourth Proportional to 109,307.16, 150,845.64 and 60,909.16

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Solution

The fourth proportional to 109,307.16, 150,845.64 and 60,909.16 is: 84,055.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,307.16 : 150,845.64 = 60,909.16 : x
  2. Step 2: Convert to fraction form
    109,307.16/150,845.64 = 60,909.16/x
  3. Step 3: Cross multiply
    109,307.16x = 150,845.64 × 60,909.16
  4. Step 4: Simplify right side
    109,307.16x = 9,187,881,222.06
  5. Step 5: Solve for x
    x = 9,187,881,222.06/109,307.16
  6. Step 6: Final answer
    x = 84,055.62

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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.