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Finding the Fourth Proportional to 249,423.48, 374,038.17 and 80,903.05

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Solution

The fourth proportional to 249,423.48, 374,038.17 and 80,903.05 is: 121,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,423.48 : 374,038.17 = 80,903.05 : x
  2. Step 2: Convert to fraction form
    249,423.48/374,038.17 = 80,903.05/x
  3. Step 3: Cross multiply
    249,423.48x = 374,038.17 × 80,903.05
  4. Step 4: Simplify right side
    249,423.48x = 30,260,829,748.67
  5. Step 5: Solve for x
    x = 30,260,829,748.67/249,423.48
  6. Step 6: Final answer
    x = 121,323.10

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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.