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Finding the Fourth Proportional to 158,894.16, 219,312.12 and 90,950.52

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Solution

The fourth proportional to 158,894.16, 219,312.12 and 90,950.52 is: 125,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,894.16 : 219,312.12 = 90,950.52 : x
  2. Step 2: Convert to fraction form
    158,894.16/219,312.12 = 90,950.52/x
  3. Step 3: Cross multiply
    158,894.16x = 219,312.12 × 90,950.52
  4. Step 4: Simplify right side
    158,894.16x = 19,946,551,356.30
  5. Step 5: Solve for x
    x = 19,946,551,356.30/158,894.16
  6. Step 6: Final answer
    x = 125,533.57

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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.