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Finding the Fourth Proportional to 93,396.48, 128,881.89 and 53,120.04

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Solution

The fourth proportional to 93,396.48, 128,881.89 and 53,120.04 is: 73,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,396.48 : 128,881.89 = 53,120.04 : x
  2. Step 2: Convert to fraction form
    93,396.48/128,881.89 = 53,120.04/x
  3. Step 3: Cross multiply
    93,396.48x = 128,881.89 × 53,120.04
  4. Step 4: Simplify right side
    93,396.48x = 6,846,211,152.08
  5. Step 5: Solve for x
    x = 6,846,211,152.08/93,396.48
  6. Step 6: Final answer
    x = 73,302.67

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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.