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Finding the Fourth Proportional to 117,670.55, 162,386.34 and 63,955.55

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Solution

The fourth proportional to 117,670.55, 162,386.34 and 63,955.55 is: 88,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,670.55 : 162,386.34 = 63,955.55 : x
  2. Step 2: Convert to fraction form
    117,670.55/162,386.34 = 63,955.55/x
  3. Step 3: Cross multiply
    117,670.55x = 162,386.34 × 63,955.55
  4. Step 4: Simplify right side
    117,670.55x = 10,385,507,936.23
  5. Step 5: Solve for x
    x = 10,385,507,936.23/117,670.55
  6. Step 6: Final answer
    x = 88,259.20

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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.