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Finding the Fourth Proportional to 110,951.84, 153,070 and 68,436.32

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Solution

The fourth proportional to 110,951.84, 153,070 and 68,436.32 is: 94,415.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,951.84 : 153,070 = 68,436.32 : x
  2. Step 2: Convert to fraction form
    110,951.84/153,070 = 68,436.32/x
  3. Step 3: Cross multiply
    110,951.84x = 153,070 × 68,436.32
  4. Step 4: Simplify right side
    110,951.84x = 10,475,547,502.40
  5. Step 5: Solve for x
    x = 10,475,547,502.40/110,951.84
  6. Step 6: Final answer
    x = 94,415.27

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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.