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Finding the Fourth Proportional to 228,281.88, 342,412.68 and 70,509.26

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Solution

The fourth proportional to 228,281.88, 342,412.68 and 70,509.26 is: 105,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,281.88 : 342,412.68 = 70,509.26 : x
  2. Step 2: Convert to fraction form
    228,281.88/342,412.68 = 70,509.26/x
  3. Step 3: Cross multiply
    228,281.88x = 342,412.68 × 70,509.26
  4. Step 4: Simplify right side
    228,281.88x = 24,143,264,681.42
  5. Step 5: Solve for x
    x = 24,143,264,681.42/228,281.88
  6. Step 6: Final answer
    x = 105,760.76

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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.