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Finding the Fourth Proportional to 93,071.97, 128,438.73 and 50,630.67

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Solution

The fourth proportional to 93,071.97, 128,438.73 and 50,630.67 is: 69,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,071.97 : 128,438.73 = 50,630.67 : x
  2. Step 2: Convert to fraction form
    93,071.97/128,438.73 = 50,630.67/x
  3. Step 3: Cross multiply
    93,071.97x = 128,438.73 × 50,630.67
  4. Step 4: Simplify right side
    93,071.97x = 6,502,938,953.85
  5. Step 5: Solve for x
    x = 6,502,938,953.85/93,071.97
  6. Step 6: Final answer
    x = 69,870.00

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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.