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Finding the Fourth Proportional to 100,545.76, 149,669.24 and 99,051.04

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Solution

The fourth proportional to 100,545.76, 149,669.24 and 99,051.04 is: 147,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,545.76 : 149,669.24 = 99,051.04 : x
  2. Step 2: Convert to fraction form
    100,545.76/149,669.24 = 99,051.04/x
  3. Step 3: Cross multiply
    100,545.76x = 149,669.24 × 99,051.04
  4. Step 4: Simplify right side
    100,545.76x = 14,824,893,878.01
  5. Step 5: Solve for x
    x = 14,824,893,878.01/100,545.76
  6. Step 6: Final answer
    x = 147,444.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.