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Finding the Fourth Proportional to 98,565.69, 136,020.69 and 53,243.67

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Solution

The fourth proportional to 98,565.69, 136,020.69 and 53,243.67 is: 73,476.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,565.69 : 136,020.69 = 53,243.67 : x
  2. Step 2: Convert to fraction form
    98,565.69/136,020.69 = 53,243.67/x
  3. Step 3: Cross multiply
    98,565.69x = 136,020.69 × 53,243.67
  4. Step 4: Simplify right side
    98,565.69x = 7,242,240,731.53
  5. Step 5: Solve for x
    x = 7,242,240,731.53/98,565.69
  6. Step 6: Final answer
    x = 73,476.29

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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.