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Finding the Fourth Proportional to 99,638.17, 149,484.60 and 49,657.93

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Solution

The fourth proportional to 99,638.17, 149,484.60 and 49,657.93 is: 74,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,638.17 : 149,484.60 = 49,657.93 : x
  2. Step 2: Convert to fraction form
    99,638.17/149,484.60 = 49,657.93/x
  3. Step 3: Cross multiply
    99,638.17x = 149,484.60 × 49,657.93
  4. Step 4: Simplify right side
    99,638.17x = 7,423,095,802.88
  5. Step 5: Solve for x
    x = 7,423,095,802.88/99,638.17
  6. Step 6: Final answer
    x = 74,500.52

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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.