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Finding the Fourth Proportional to 535,804.47, 803,712.92 and 136,444.77

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Solution

The fourth proportional to 535,804.47, 803,712.92 and 136,444.77 is: 204,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,804.47 : 803,712.92 = 136,444.77 : x
  2. Step 2: Convert to fraction form
    535,804.47/803,712.92 = 136,444.77/x
  3. Step 3: Cross multiply
    535,804.47x = 803,712.92 × 136,444.77
  4. Step 4: Simplify right side
    535,804.47x = 109,662,423,833.21
  5. Step 5: Solve for x
    x = 109,662,423,833.21/535,804.47
  6. Step 6: Final answer
    x = 204,668.74

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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.