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Finding the Fourth Proportional to 98,652.59, 136,142.06 and 56,210.21

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Solution

The fourth proportional to 98,652.59, 136,142.06 and 56,210.21 is: 77,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,652.59 : 136,142.06 = 56,210.21 : x
  2. Step 2: Convert to fraction form
    98,652.59/136,142.06 = 56,210.21/x
  3. Step 3: Cross multiply
    98,652.59x = 136,142.06 × 56,210.21
  4. Step 4: Simplify right side
    98,652.59x = 7,652,573,782.43
  5. Step 5: Solve for x
    x = 7,652,573,782.43/98,652.59
  6. Step 6: Final answer
    x = 77,570.94

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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.