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Finding the Fourth Proportional to 108,855.91, 150,210.88 and 61,099.93

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Solution

The fourth proportional to 108,855.91, 150,210.88 and 61,099.93 is: 84,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,855.91 : 150,210.88 = 61,099.93 : x
  2. Step 2: Convert to fraction form
    108,855.91/150,210.88 = 61,099.93/x
  3. Step 3: Cross multiply
    108,855.91x = 150,210.88 × 61,099.93
  4. Step 4: Simplify right side
    108,855.91x = 9,177,874,253.24
  5. Step 5: Solve for x
    x = 9,177,874,253.24/108,855.91
  6. Step 6: Final answer
    x = 84,312.14

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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.