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Finding the Fourth Proportional to 98,573.84, 136,041.92 and 58,300.64

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Solution

The fourth proportional to 98,573.84, 136,041.92 and 58,300.64 is: 80,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,573.84 : 136,041.92 = 58,300.64 : x
  2. Step 2: Convert to fraction form
    98,573.84/136,041.92 = 58,300.64/x
  3. Step 3: Cross multiply
    98,573.84x = 136,041.92 × 58,300.64
  4. Step 4: Simplify right side
    98,573.84x = 7,931,331,002.83
  5. Step 5: Solve for x
    x = 7,931,331,002.83/98,573.84
  6. Step 6: Final answer
    x = 80,460.81

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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.