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Finding the Fourth Proportional to 163,747.71, 245,681.64 and 69,001.74

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Solution

The fourth proportional to 163,747.71, 245,681.64 and 69,001.74 is: 103,527.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,747.71 : 245,681.64 = 69,001.74 : x
  2. Step 2: Convert to fraction form
    163,747.71/245,681.64 = 69,001.74/x
  3. Step 3: Cross multiply
    163,747.71x = 245,681.64 × 69,001.74
  4. Step 4: Simplify right side
    163,747.71x = 16,952,460,646.05
  5. Step 5: Solve for x
    x = 16,952,460,646.05/163,747.71
  6. Step 6: Final answer
    x = 103,527.93

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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.