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Finding the Fourth Proportional to 76,097.84, 105,010.68 and 42,104.40

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Solution

The fourth proportional to 76,097.84, 105,010.68 and 42,104.40 is: 58,101.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,097.84 : 105,010.68 = 42,104.40 : x
  2. Step 2: Convert to fraction form
    76,097.84/105,010.68 = 42,104.40/x
  3. Step 3: Cross multiply
    76,097.84x = 105,010.68 × 42,104.40
  4. Step 4: Simplify right side
    76,097.84x = 4,421,411,674.99
  5. Step 5: Solve for x
    x = 4,421,411,674.99/76,097.84
  6. Step 6: Final answer
    x = 58,101.67

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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.