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Finding the Fourth Proportional to 144,412.56, 216,680.40 and 74,341.08

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Solution

The fourth proportional to 144,412.56, 216,680.40 and 74,341.08 is: 111,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,412.56 : 216,680.40 = 74,341.08 : x
  2. Step 2: Convert to fraction form
    144,412.56/216,680.40 = 74,341.08/x
  3. Step 3: Cross multiply
    144,412.56x = 216,680.40 × 74,341.08
  4. Step 4: Simplify right side
    144,412.56x = 16,108,254,950.83
  5. Step 5: Solve for x
    x = 16,108,254,950.83/144,412.56
  6. Step 6: Final answer
    x = 111,543.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.