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Finding the Fourth Proportional to 93,312.30, 128,770.65 and 50,870.82

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Solution

The fourth proportional to 93,312.30, 128,770.65 and 50,870.82 is: 70,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.30 : 128,770.65 = 50,870.82 : x
  2. Step 2: Convert to fraction form
    93,312.30/128,770.65 = 50,870.82/x
  3. Step 3: Cross multiply
    93,312.30x = 128,770.65 × 50,870.82
  4. Step 4: Simplify right side
    93,312.30x = 6,550,668,557.43
  5. Step 5: Solve for x
    x = 6,550,668,557.43/93,312.30
  6. Step 6: Final answer
    x = 70,201.55

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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.