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Finding the Fourth Proportional to 104,457.60, 156,788.80 and 51,926.40

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Solution

The fourth proportional to 104,457.60, 156,788.80 and 51,926.40 is: 77,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,457.60 : 156,788.80 = 51,926.40 : x
  2. Step 2: Convert to fraction form
    104,457.60/156,788.80 = 51,926.40/x
  3. Step 3: Cross multiply
    104,457.60x = 156,788.80 × 51,926.40
  4. Step 4: Simplify right side
    104,457.60x = 8,141,477,944.32
  5. Step 5: Solve for x
    x = 8,141,477,944.32/104,457.60
  6. Step 6: Final answer
    x = 77,940.50

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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.