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Finding the Fourth Proportional to 98,394.99, 147,593.34 and 28,274.28

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Solution

The fourth proportional to 98,394.99, 147,593.34 and 28,274.28 is: 42,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,394.99 : 147,593.34 = 28,274.28 : x
  2. Step 2: Convert to fraction form
    98,394.99/147,593.34 = 28,274.28/x
  3. Step 3: Cross multiply
    98,394.99x = 147,593.34 × 28,274.28
  4. Step 4: Simplify right side
    98,394.99x = 4,173,095,421.30
  5. Step 5: Solve for x
    x = 4,173,095,421.30/98,394.99
  6. Step 6: Final answer
    x = 42,411.67

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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.