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Finding the Fourth Proportional to 108,825.60, 163,276.80 and 104,985.60

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Solution

The fourth proportional to 108,825.60, 163,276.80 and 104,985.60 is: 157,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,825.60 : 163,276.80 = 104,985.60 : x
  2. Step 2: Convert to fraction form
    108,825.60/163,276.80 = 104,985.60/x
  3. Step 3: Cross multiply
    108,825.60x = 163,276.80 × 104,985.60
  4. Step 4: Simplify right side
    108,825.60x = 17,141,712,814.08
  5. Step 5: Solve for x
    x = 17,141,712,814.08/108,825.60
  6. Step 6: Final answer
    x = 157,515.45

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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.