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Finding the Fourth Proportional to 50,798.70, 76,088.70 and 42,050.70

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Solution

The fourth proportional to 50,798.70, 76,088.70 and 42,050.70 is: 62,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,798.70 : 76,088.70 = 42,050.70 : x
  2. Step 2: Convert to fraction form
    50,798.70/76,088.70 = 42,050.70/x
  3. Step 3: Cross multiply
    50,798.70x = 76,088.70 × 42,050.70
  4. Step 4: Simplify right side
    50,798.70x = 3,199,583,097.09
  5. Step 5: Solve for x
    x = 3,199,583,097.09/50,798.70
  6. Step 6: Final answer
    x = 62,985.53

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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.