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Finding the Fourth Proportional to 92,929.25, 128,248.71 and 52,643.34

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Solution

The fourth proportional to 92,929.25, 128,248.71 and 52,643.34 is: 72,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,929.25 : 128,248.71 = 52,643.34 : x
  2. Step 2: Convert to fraction form
    92,929.25/128,248.71 = 52,643.34/x
  3. Step 3: Cross multiply
    92,929.25x = 128,248.71 × 52,643.34
  4. Step 4: Simplify right side
    92,929.25x = 6,751,440,247.68
  5. Step 5: Solve for x
    x = 6,751,440,247.68/92,929.25
  6. Step 6: Final answer
    x = 72,651.40

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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.