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Finding the Fourth Proportional to 104,798.61, 156,485.07 and 98,878.68

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Solution

The fourth proportional to 104,798.61, 156,485.07 and 98,878.68 is: 147,645.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,798.61 : 156,485.07 = 98,878.68 : x
  2. Step 2: Convert to fraction form
    104,798.61/156,485.07 = 98,878.68/x
  3. Step 3: Cross multiply
    104,798.61x = 156,485.07 × 98,878.68
  4. Step 4: Simplify right side
    104,798.61x = 15,473,037,161.31
  5. Step 5: Solve for x
    x = 15,473,037,161.31/104,798.61
  6. Step 6: Final answer
    x = 147,645.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.