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Finding the Fourth Proportional to 228,526.72, 342,806.08 and 70,734.40

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Solution

The fourth proportional to 228,526.72, 342,806.08 and 70,734.40 is: 106,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,526.72 : 342,806.08 = 70,734.40 : x
  2. Step 2: Convert to fraction form
    228,526.72/342,806.08 = 70,734.40/x
  3. Step 3: Cross multiply
    228,526.72x = 342,806.08 × 70,734.40
  4. Step 4: Simplify right side
    228,526.72x = 24,248,182,385.15
  5. Step 5: Solve for x
    x = 24,248,182,385.15/228,526.72
  6. Step 6: Final answer
    x = 106,106.55

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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.