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Finding the Fourth Proportional to 104,669.80, 157,041.15 and 45,547.90

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Solution

The fourth proportional to 104,669.80, 157,041.15 and 45,547.90 is: 68,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,669.80 : 157,041.15 = 45,547.90 : x
  2. Step 2: Convert to fraction form
    104,669.80/157,041.15 = 45,547.90/x
  3. Step 3: Cross multiply
    104,669.80x = 157,041.15 × 45,547.90
  4. Step 4: Simplify right side
    104,669.80x = 7,152,894,596.09
  5. Step 5: Solve for x
    x = 7,152,894,596.09/104,669.80
  6. Step 6: Final answer
    x = 68,337.71

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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.