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Finding the Fourth Proportional to 228,298.68, 342,477.72 and 70,513.92

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Solution

The fourth proportional to 228,298.68, 342,477.72 and 70,513.92 is: 105,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,298.68 : 342,477.72 = 70,513.92 : x
  2. Step 2: Convert to fraction form
    228,298.68/342,477.72 = 70,513.92/x
  3. Step 3: Cross multiply
    228,298.68x = 342,477.72 × 70,513.92
  4. Step 4: Simplify right side
    228,298.68x = 24,149,446,549.86
  5. Step 5: Solve for x
    x = 24,149,446,549.86/228,298.68
  6. Step 6: Final answer
    x = 105,780.05

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1.5x scale

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.