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Finding the Fourth Proportional to 172,011.62, 237,410.98 and 99,417.60

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Solution

The fourth proportional to 172,011.62, 237,410.98 and 99,417.60 is: 137,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,011.62 : 237,410.98 = 99,417.60 : x
  2. Step 2: Convert to fraction form
    172,011.62/237,410.98 = 99,417.60/x
  3. Step 3: Cross multiply
    172,011.62x = 237,410.98 × 99,417.60
  4. Step 4: Simplify right side
    172,011.62x = 23,602,829,596.70
  5. Step 5: Solve for x
    x = 23,602,829,596.70/172,011.62
  6. Step 6: Final answer
    x = 137,216.48

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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.