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Finding the Fourth Proportional to 114,477.57, 157,978.95 and 64,176.57

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Solution

The fourth proportional to 114,477.57, 157,978.95 and 64,176.57 is: 88,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,477.57 : 157,978.95 = 64,176.57 : x
  2. Step 2: Convert to fraction form
    114,477.57/157,978.95 = 64,176.57/x
  3. Step 3: Cross multiply
    114,477.57x = 157,978.95 × 64,176.57
  4. Step 4: Simplify right side
    114,477.57x = 10,138,547,143.20
  5. Step 5: Solve for x
    x = 10,138,547,143.20/114,477.57
  6. Step 6: Final answer
    x = 88,563.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.