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Finding the Fourth Proportional to 171,875.80, 257,813.70 and 93,143.80

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Solution

The fourth proportional to 171,875.80, 257,813.70 and 93,143.80 is: 139,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,875.80 : 257,813.70 = 93,143.80 : x
  2. Step 2: Convert to fraction form
    171,875.80/257,813.70 = 93,143.80/x
  3. Step 3: Cross multiply
    171,875.80x = 257,813.70 × 93,143.80
  4. Step 4: Simplify right side
    171,875.80x = 24,013,747,710.06
  5. Step 5: Solve for x
    x = 24,013,747,710.06/171,875.80
  6. Step 6: Final answer
    x = 139,715.70

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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.