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Finding the Fourth Proportional to 93,643.58, 129,217.56 and 55,404.30

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Solution

The fourth proportional to 93,643.58, 129,217.56 and 55,404.30 is: 76,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,643.58 : 129,217.56 = 55,404.30 : x
  2. Step 2: Convert to fraction form
    93,643.58/129,217.56 = 55,404.30/x
  3. Step 3: Cross multiply
    93,643.58x = 129,217.56 × 55,404.30
  4. Step 4: Simplify right side
    93,643.58x = 7,159,208,459.51
  5. Step 5: Solve for x
    x = 7,159,208,459.51/93,643.58
  6. Step 6: Final answer
    x = 76,451.67

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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.