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Finding the Fourth Proportional to 108,919.76, 163,263.48 and 62,071.76

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Solution

The fourth proportional to 108,919.76, 163,263.48 and 62,071.76 is: 93,041.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,919.76 : 163,263.48 = 62,071.76 : x
  2. Step 2: Convert to fraction form
    108,919.76/163,263.48 = 62,071.76/x
  3. Step 3: Cross multiply
    108,919.76x = 163,263.48 × 62,071.76
  4. Step 4: Simplify right side
    108,919.76x = 10,134,051,547.32
  5. Step 5: Solve for x
    x = 10,134,051,547.32/108,919.76
  6. Step 6: Final answer
    x = 93,041.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.