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Finding the Fourth Proportional to 115,352, 159,185.76 and 62,360

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Solution

The fourth proportional to 115,352, 159,185.76 and 62,360 is: 86,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,352 : 159,185.76 = 62,360 : x
  2. Step 2: Convert to fraction form
    115,352/159,185.76 = 62,360/x
  3. Step 3: Cross multiply
    115,352x = 159,185.76 × 62,360
  4. Step 4: Simplify right side
    115,352x = 9,926,823,993.60
  5. Step 5: Solve for x
    x = 9,926,823,993.60/115,352
  6. Step 6: Final answer
    x = 86,056.80

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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.