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Finding the Fourth Proportional to 478,068.33, 716,935.40 and 141,019.52

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Solution

The fourth proportional to 478,068.33, 716,935.40 and 141,019.52 is: 211,479.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,068.33 : 716,935.40 = 141,019.52 : x
  2. Step 2: Convert to fraction form
    478,068.33/716,935.40 = 141,019.52/x
  3. Step 3: Cross multiply
    478,068.33x = 716,935.40 × 141,019.52
  4. Step 4: Simplify right side
    478,068.33x = 101,101,881,689.23
  5. Step 5: Solve for x
    x = 101,101,881,689.23/478,068.33
  6. Step 6: Final answer
    x = 211,479.98

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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.