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Finding the Fourth Proportional to 163,030.85, 224,984.87 and 98,491.11

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Solution

The fourth proportional to 163,030.85, 224,984.87 and 98,491.11 is: 135,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,030.85 : 224,984.87 = 98,491.11 : x
  2. Step 2: Convert to fraction form
    163,030.85/224,984.87 = 98,491.11/x
  3. Step 3: Cross multiply
    163,030.85x = 224,984.87 × 98,491.11
  4. Step 4: Simplify right side
    163,030.85x = 22,159,011,065.02
  5. Step 5: Solve for x
    x = 22,159,011,065.02/163,030.85
  6. Step 6: Final answer
    x = 135,919.13

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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.