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Finding the Fourth Proportional to 125,277.84, 172,894.32 and 68,700.24

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Solution

The fourth proportional to 125,277.84, 172,894.32 and 68,700.24 is: 94,812.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,277.84 : 172,894.32 = 68,700.24 : x
  2. Step 2: Convert to fraction form
    125,277.84/172,894.32 = 68,700.24/x
  3. Step 3: Cross multiply
    125,277.84x = 172,894.32 × 68,700.24
  4. Step 4: Simplify right side
    125,277.84x = 11,877,881,278.64
  5. Step 5: Solve for x
    x = 11,877,881,278.64/125,277.84
  6. Step 6: Final answer
    x = 94,812.31

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1.5x scale

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.