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Finding the Fourth Proportional to 357,030.68, 535,547.79 and 120,375.41

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Solution

The fourth proportional to 357,030.68, 535,547.79 and 120,375.41 is: 180,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,030.68 : 535,547.79 = 120,375.41 : x
  2. Step 2: Convert to fraction form
    357,030.68/535,547.79 = 120,375.41/x
  3. Step 3: Cross multiply
    357,030.68x = 535,547.79 × 120,375.41
  4. Step 4: Simplify right side
    357,030.68x = 64,466,782,118.11
  5. Step 5: Solve for x
    x = 64,466,782,118.11/357,030.68
  6. Step 6: Final answer
    x = 180,563.71

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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.