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Finding the Fourth Proportional to 282,638.72, 423,867.32 and 93,054.98

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Solution

The fourth proportional to 282,638.72, 423,867.32 and 93,054.98 is: 139,552.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,638.72 : 423,867.32 = 93,054.98 : x
  2. Step 2: Convert to fraction form
    282,638.72/423,867.32 = 93,054.98/x
  3. Step 3: Cross multiply
    282,638.72x = 423,867.32 × 93,054.98
  4. Step 4: Simplify right side
    282,638.72x = 39,442,963,098.55
  5. Step 5: Solve for x
    x = 39,442,963,098.55/282,638.72
  6. Step 6: Final answer
    x = 139,552.58

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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.