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Finding the Fourth Proportional to 315,661.65, 473,492.43 and 115,895.58

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Solution

The fourth proportional to 315,661.65, 473,492.43 and 115,895.58 is: 173,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,661.65 : 473,492.43 = 115,895.58 : x
  2. Step 2: Convert to fraction form
    315,661.65/473,492.43 = 115,895.58/x
  3. Step 3: Cross multiply
    315,661.65x = 473,492.43 × 115,895.58
  4. Step 4: Simplify right side
    315,661.65x = 54,875,679,800.46
  5. Step 5: Solve for x
    x = 54,875,679,800.46/315,661.65
  6. Step 6: Final answer
    x = 173,843.35

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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.