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Finding the Fourth Proportional to 235,483.65, 353,247.08 and 77,712.45

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Solution

The fourth proportional to 235,483.65, 353,247.08 and 77,712.45 is: 116,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,483.65 : 353,247.08 = 77,712.45 : x
  2. Step 2: Convert to fraction form
    235,483.65/353,247.08 = 77,712.45/x
  3. Step 3: Cross multiply
    235,483.65x = 353,247.08 × 77,712.45
  4. Step 4: Simplify right side
    235,483.65x = 27,451,695,653.58
  5. Step 5: Solve for x
    x = 27,451,695,653.58/235,483.65
  6. Step 6: Final answer
    x = 116,575.80

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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.