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Finding the Fourth Proportional to 93,886.70, 140,830.05 and 47,122.70

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Solution

The fourth proportional to 93,886.70, 140,830.05 and 47,122.70 is: 70,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,886.70 : 140,830.05 = 47,122.70 : x
  2. Step 2: Convert to fraction form
    93,886.70/140,830.05 = 47,122.70/x
  3. Step 3: Cross multiply
    93,886.70x = 140,830.05 × 47,122.70
  4. Step 4: Simplify right side
    93,886.70x = 6,636,292,197.14
  5. Step 5: Solve for x
    x = 6,636,292,197.14/93,886.70
  6. Step 6: Final answer
    x = 70,684.05

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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.