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Finding the Fourth Proportional to 228,055.60, 342,115.80 and 70,267.60

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Solution

The fourth proportional to 228,055.60, 342,115.80 and 70,267.60 is: 105,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,055.60 : 342,115.80 = 70,267.60 : x
  2. Step 2: Convert to fraction form
    228,055.60/342,115.80 = 70,267.60/x
  3. Step 3: Cross multiply
    228,055.60x = 342,115.80 × 70,267.60
  4. Step 4: Simplify right side
    228,055.60x = 24,039,656,188.08
  5. Step 5: Solve for x
    x = 24,039,656,188.08/228,055.60
  6. Step 6: Final answer
    x = 105,411.38

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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.