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Finding the Fourth Proportional to 93,547.80, 140,321.70 and 70,219.80

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Solution

The fourth proportional to 93,547.80, 140,321.70 and 70,219.80 is: 105,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,547.80 : 140,321.70 = 70,219.80 : x
  2. Step 2: Convert to fraction form
    93,547.80/140,321.70 = 70,219.80/x
  3. Step 3: Cross multiply
    93,547.80x = 140,321.70 × 70,219.80
  4. Step 4: Simplify right side
    93,547.80x = 9,853,361,709.66
  5. Step 5: Solve for x
    x = 9,853,361,709.66/93,547.80
  6. Step 6: Final answer
    x = 105,329.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.