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Finding the Fourth Proportional to 210,477.36, 315,713.64 and 60,712.71

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Solution

The fourth proportional to 210,477.36, 315,713.64 and 60,712.71 is: 91,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,477.36 : 315,713.64 = 60,712.71 : x
  2. Step 2: Convert to fraction form
    210,477.36/315,713.64 = 60,712.71/x
  3. Step 3: Cross multiply
    210,477.36x = 315,713.64 × 60,712.71
  4. Step 4: Simplify right side
    210,477.36x = 19,167,830,668.36
  5. Step 5: Solve for x
    x = 19,167,830,668.36/210,477.36
  6. Step 6: Final answer
    x = 91,068.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.