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Finding the Fourth Proportional to 70,341.99, 97,078.55 and 42,047.07

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Solution

The fourth proportional to 70,341.99, 97,078.55 and 42,047.07 is: 58,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,341.99 : 97,078.55 = 42,047.07 : x
  2. Step 2: Convert to fraction form
    70,341.99/97,078.55 = 42,047.07/x
  3. Step 3: Cross multiply
    70,341.99x = 97,078.55 × 42,047.07
  4. Step 4: Simplify right side
    70,341.99x = 4,081,868,587.35
  5. Step 5: Solve for x
    x = 4,081,868,587.35/70,341.99
  6. Step 6: Final answer
    x = 58,028.90

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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.