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Finding the Fourth Proportional to 94,319, 141,448.44 and 31,127.36

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Solution

The fourth proportional to 94,319, 141,448.44 and 31,127.36 is: 46,681.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,319 : 141,448.44 = 31,127.36 : x
  2. Step 2: Convert to fraction form
    94,319/141,448.44 = 31,127.36/x
  3. Step 3: Cross multiply
    94,319x = 141,448.44 × 31,127.36
  4. Step 4: Simplify right side
    94,319x = 4,402,916,513.32
  5. Step 5: Solve for x
    x = 4,402,916,513.32/94,319
  6. Step 6: Final answer
    x = 46,681.12

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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.