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Finding the Fourth Proportional to 93,413.84, 128,913.96 and 53,133.40

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Solution

The fourth proportional to 93,413.84, 128,913.96 and 53,133.40 is: 73,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,413.84 : 128,913.96 = 53,133.40 : x
  2. Step 2: Convert to fraction form
    93,413.84/128,913.96 = 53,133.40/x
  3. Step 3: Cross multiply
    93,413.84x = 128,913.96 × 53,133.40
  4. Step 4: Simplify right side
    93,413.84x = 6,849,637,002.26
  5. Step 5: Solve for x
    x = 6,849,637,002.26/93,413.84
  6. Step 6: Final answer
    x = 73,325.72

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1.5x scale

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.