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Finding the Fourth Proportional to 112,051.84, 154,631.57 and 61,064.59

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Solution

The fourth proportional to 112,051.84, 154,631.57 and 61,064.59 is: 84,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,051.84 : 154,631.57 = 61,064.59 : x
  2. Step 2: Convert to fraction form
    112,051.84/154,631.57 = 61,064.59/x
  3. Step 3: Cross multiply
    112,051.84x = 154,631.57 × 61,064.59
  4. Step 4: Simplify right side
    112,051.84x = 9,442,513,423.11
  5. Step 5: Solve for x
    x = 9,442,513,423.11/112,051.84
  6. Step 6: Final answer
    x = 84,269.15

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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.