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Finding the Fourth Proportional to 119,730, 179,595.90 and 53,152.23

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Solution

The fourth proportional to 119,730, 179,595.90 and 53,152.23 is: 79,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,730 : 179,595.90 = 53,152.23 : x
  2. Step 2: Convert to fraction form
    119,730/179,595.90 = 53,152.23/x
  3. Step 3: Cross multiply
    119,730x = 179,595.90 × 53,152.23
  4. Step 4: Simplify right side
    119,730x = 9,545,922,583.86
  5. Step 5: Solve for x
    x = 9,545,922,583.86/119,730
  6. Step 6: Final answer
    x = 79,728.74

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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.