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Finding the Fourth Proportional to 357,030.17, 535,547.09 and 120,374.90

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Solution

The fourth proportional to 357,030.17, 535,547.09 and 120,374.90 is: 180,562.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,030.17 : 535,547.09 = 120,374.90 : x
  2. Step 2: Convert to fraction form
    357,030.17/535,547.09 = 120,374.90/x
  3. Step 3: Cross multiply
    357,030.17x = 535,547.09 × 120,374.90
  4. Step 4: Simplify right side
    357,030.17x = 64,466,424,124.43
  5. Step 5: Solve for x
    x = 64,466,424,124.43/357,030.17
  6. Step 6: Final answer
    x = 180,562.96

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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.