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Finding the Fourth Proportional to 88,059.76, 121,492.88 and 50,307.28

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Solution

The fourth proportional to 88,059.76, 121,492.88 and 50,307.28 is: 69,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,059.76 : 121,492.88 = 50,307.28 : x
  2. Step 2: Convert to fraction form
    88,059.76/121,492.88 = 50,307.28/x
  3. Step 3: Cross multiply
    88,059.76x = 121,492.88 × 50,307.28
  4. Step 4: Simplify right side
    88,059.76x = 6,111,976,332.17
  5. Step 5: Solve for x
    x = 6,111,976,332.17/88,059.76
  6. Step 6: Final answer
    x = 69,407.14

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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.