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Finding the Fourth Proportional to 118,872.49, 177,070.01 and 112,561.51

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Solution

The fourth proportional to 118,872.49, 177,070.01 and 112,561.51 is: 167,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872.49 : 177,070.01 = 112,561.51 : x
  2. Step 2: Convert to fraction form
    118,872.49/177,070.01 = 112,561.51/x
  3. Step 3: Cross multiply
    118,872.49x = 177,070.01 × 112,561.51
  4. Step 4: Simplify right side
    118,872.49x = 19,931,267,701.32
  5. Step 5: Solve for x
    x = 19,931,267,701.32/118,872.49
  6. Step 6: Final answer
    x = 167,669.30

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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.