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Finding the Fourth Proportional to 109,315.60, 163,973.40 and 97,068.40

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Solution

The fourth proportional to 109,315.60, 163,973.40 and 97,068.40 is: 145,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,315.60 : 163,973.40 = 97,068.40 : x
  2. Step 2: Convert to fraction form
    109,315.60/163,973.40 = 97,068.40/x
  3. Step 3: Cross multiply
    109,315.60x = 163,973.40 × 97,068.40
  4. Step 4: Simplify right side
    109,315.60x = 15,916,635,580.56
  5. Step 5: Solve for x
    x = 15,916,635,580.56/109,315.60
  6. Step 6: Final answer
    x = 145,602.60

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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.