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Finding the Fourth Proportional to 315,603, 473,486.58 and 93,987

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Solution

The fourth proportional to 315,603, 473,486.58 and 93,987 is: 141,004.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,603 : 473,486.58 = 93,987 : x
  2. Step 2: Convert to fraction form
    315,603/473,486.58 = 93,987/x
  3. Step 3: Cross multiply
    315,603x = 473,486.58 × 93,987
  4. Step 4: Simplify right side
    315,603x = 44,501,583,194.46
  5. Step 5: Solve for x
    x = 44,501,583,194.46/315,603
  6. Step 6: Final answer
    x = 141,004.94

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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.