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Finding the Fourth Proportional to 348,442.21, 522,663.41 and 99,124.21

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Solution

The fourth proportional to 348,442.21, 522,663.41 and 99,124.21 is: 148,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,442.21 : 522,663.41 = 99,124.21 : x
  2. Step 2: Convert to fraction form
    348,442.21/522,663.41 = 99,124.21/x
  3. Step 3: Cross multiply
    348,442.21x = 522,663.41 × 99,124.21
  4. Step 4: Simplify right side
    348,442.21x = 51,808,597,612.16
  5. Step 5: Solve for x
    x = 51,808,597,612.16/348,442.21
  6. Step 6: Final answer
    x = 148,686.34

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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.