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Finding the Fourth Proportional to 212,643.01, 293,043.59 and 152,108.52

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Solution

The fourth proportional to 212,643.01, 293,043.59 and 152,108.52 is: 209,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,643.01 : 293,043.59 = 152,108.52 : x
  2. Step 2: Convert to fraction form
    212,643.01/293,043.59 = 152,108.52/x
  3. Step 3: Cross multiply
    212,643.01x = 293,043.59 × 152,108.52
  4. Step 4: Simplify right side
    212,643.01x = 44,574,426,009.84
  5. Step 5: Solve for x
    x = 44,574,426,009.84/212,643.01
  6. Step 6: Final answer
    x = 209,620.93

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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.