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Finding the Fourth Proportional to 116,349.65, 160,566.32 and 65,371.45

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Solution

The fourth proportional to 116,349.65, 160,566.32 and 65,371.45 is: 90,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,349.65 : 160,566.32 = 65,371.45 : x
  2. Step 2: Convert to fraction form
    116,349.65/160,566.32 = 65,371.45/x
  3. Step 3: Cross multiply
    116,349.65x = 160,566.32 × 65,371.45
  4. Step 4: Simplify right side
    116,349.65x = 10,496,453,159.56
  5. Step 5: Solve for x
    x = 10,496,453,159.56/116,349.65
  6. Step 6: Final answer
    x = 90,214.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.