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Finding the Fourth Proportional to 250,483.84, 345,681.61 and 143,088.77

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Solution

The fourth proportional to 250,483.84, 345,681.61 and 143,088.77 is: 197,470.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,483.84 : 345,681.61 = 143,088.77 : x
  2. Step 2: Convert to fraction form
    250,483.84/345,681.61 = 143,088.77/x
  3. Step 3: Cross multiply
    250,483.84x = 345,681.61 × 143,088.77
  4. Step 4: Simplify right side
    250,483.84x = 49,463,156,893.00
  5. Step 5: Solve for x
    x = 49,463,156,893.00/250,483.84
  6. Step 6: Final answer
    x = 197,470.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.