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Finding the Fourth Proportional to 388,810.07, 583,215.10 and 93,322.07

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Solution

The fourth proportional to 388,810.07, 583,215.10 and 93,322.07 is: 139,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,810.07 : 583,215.10 = 93,322.07 : x
  2. Step 2: Convert to fraction form
    388,810.07/583,215.10 = 93,322.07/x
  3. Step 3: Cross multiply
    388,810.07x = 583,215.10 × 93,322.07
  4. Step 4: Simplify right side
    388,810.07x = 54,426,837,004.57
  5. Step 5: Solve for x
    x = 54,426,837,004.57/388,810.07
  6. Step 6: Final answer
    x = 139,983.10

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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.