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Finding the Fourth Proportional to 524,038.68, 786,155.76 and 169,015.68

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Solution

The fourth proportional to 524,038.68, 786,155.76 and 169,015.68 is: 253,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,038.68 : 786,155.76 = 169,015.68 : x
  2. Step 2: Convert to fraction form
    524,038.68/786,155.76 = 169,015.68/x
  3. Step 3: Cross multiply
    524,038.68x = 786,155.76 × 169,015.68
  4. Step 4: Simplify right side
    524,038.68x = 132,872,650,362.32
  5. Step 5: Solve for x
    x = 132,872,650,362.32/524,038.68
  6. Step 6: Final answer
    x = 253,555.04

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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.