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Finding the Fourth Proportional to 157,075.52, 216,681.60 and 93,368

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Solution

The fourth proportional to 157,075.52, 216,681.60 and 93,368 is: 128,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,075.52 : 216,681.60 = 93,368 : x
  2. Step 2: Convert to fraction form
    157,075.52/216,681.60 = 93,368/x
  3. Step 3: Cross multiply
    157,075.52x = 216,681.60 × 93,368
  4. Step 4: Simplify right side
    157,075.52x = 20,231,127,628.80
  5. Step 5: Solve for x
    x = 20,231,127,628.80/157,075.52
  6. Step 6: Final answer
    x = 128,798.73

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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.