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Finding the Fourth Proportional to 525,718.71, 788,654.19 and 165,767.39

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Solution

The fourth proportional to 525,718.71, 788,654.19 and 165,767.39 is: 248,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,718.71 : 788,654.19 = 165,767.39 : x
  2. Step 2: Convert to fraction form
    525,718.71/788,654.19 = 165,767.39/x
  3. Step 3: Cross multiply
    525,718.71x = 788,654.19 × 165,767.39
  4. Step 4: Simplify right side
    525,718.71x = 130,733,141,916.76
  5. Step 5: Solve for x
    x = 130,733,141,916.76/525,718.71
  6. Step 6: Final answer
    x = 248,675.08

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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.