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Finding the Fourth Proportional to 245,417.80, 368,130.10 and 161,713.80

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Solution

The fourth proportional to 245,417.80, 368,130.10 and 161,713.80 is: 242,572.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,417.80 : 368,130.10 = 161,713.80 : x
  2. Step 2: Convert to fraction form
    245,417.80/368,130.10 = 161,713.80/x
  3. Step 3: Cross multiply
    245,417.80x = 368,130.10 × 161,713.80
  4. Step 4: Simplify right side
    245,417.80x = 59,531,717,365.38
  5. Step 5: Solve for x
    x = 59,531,717,365.38/245,417.80
  6. Step 6: Final answer
    x = 242,572.94

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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.