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Finding the Fourth Proportional to 202,041.70, 302,868.15 and 157,038.10

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Solution

The fourth proportional to 202,041.70, 302,868.15 and 157,038.10 is: 235,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,041.70 : 302,868.15 = 157,038.10 : x
  2. Step 2: Convert to fraction form
    202,041.70/302,868.15 = 157,038.10/x
  3. Step 3: Cross multiply
    202,041.70x = 302,868.15 × 157,038.10
  4. Step 4: Simplify right side
    202,041.70x = 47,561,838,826.52
  5. Step 5: Solve for x
    x = 47,561,838,826.52/202,041.70
  6. Step 6: Final answer
    x = 235,406.05

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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.