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Finding the Fourth Proportional to 117,975.66, 162,805.02 and 64,260.50

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Solution

The fourth proportional to 117,975.66, 162,805.02 and 64,260.50 is: 88,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,975.66 : 162,805.02 = 64,260.50 : x
  2. Step 2: Convert to fraction form
    117,975.66/162,805.02 = 64,260.50/x
  3. Step 3: Cross multiply
    117,975.66x = 162,805.02 × 64,260.50
  4. Step 4: Simplify right side
    117,975.66x = 10,461,931,987.71
  5. Step 5: Solve for x
    x = 10,461,931,987.71/117,975.66
  6. Step 6: Final answer
    x = 88,678.73

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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.