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Finding the Fourth Proportional to 575,071.81, 862,607.56 and 154,347.68

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Solution

The fourth proportional to 575,071.81, 862,607.56 and 154,347.68 is: 231,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,071.81 : 862,607.56 = 154,347.68 : x
  2. Step 2: Convert to fraction form
    575,071.81/862,607.56 = 154,347.68/x
  3. Step 3: Cross multiply
    575,071.81x = 862,607.56 × 154,347.68
  4. Step 4: Simplify right side
    575,071.81x = 133,141,475,636.46
  5. Step 5: Solve for x
    x = 133,141,475,636.46/575,071.81
  6. Step 6: Final answer
    x = 231,521.48

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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.